Bassspektrums

Bassspektrums is a term used in audio analysis to describe the distribution of energy within the bass portion of an audio signal. It refers to the spectral content of frequencies roughly from 20 Hz up to a few hundred hertz, where the perception of bass fullness and impact is most pronounced. The bass spectrum of a recording or playback system is typically represented as amplitude versus frequency, obtained via Fourier transform or short-time Fourier transform and displayed on a spectrum analyzer. The term Bassspektrums is not universally standardized; in formal acoustics the expression bass spectrum is more common.

The shape of the bass spectrum is influenced by the content of the music, the source's dynamic range, the playback system's frequency response, and the acoustic characteristics of the listening room. Room modes, speaker placement, subwoofer tuning, and nonlinearity in amplification can produce peaks or dips in the bass spectrum, affecting perceived balance and loudness.

In practice, assessing the Bassspektrums helps engineers make mixing and mastering decisions, such as balancing kick, bass guitar, and synth bass, or adjusting sub-bass energy with equalization or dynamic processing. It also informs speaker design and room treatment, guiding subwoofer count, crossover settings, and bass trap placement.

Limitations include the dependence on measurement conditions, microphone placement, and reference level. The concept complements broader spectral analysis and is related to terms such as bass response, low-frequency extension, and room acoustics.